Histamine Analogues, XXXV: 2-Substituted Histamine Derivatives Containing Classical Moieties of H2-Antagonists - a Novel Class of H1-Agonists
作者:Volkmar Zingel、Sigurd Elz、Walter Schunack
DOI:10.1002/ardp.19933260306
日期:——
A new type of H1‐agonists resulted from the combination of the essential histamine structure with parts of H2‐antagonists. 2,4‐Disubstituted imidazole derivatives were synthesized by reaction of imidic acid methyl esters with 1,3‐dihydroxypropanone, 1,4‐dihydroxybutanone or 2‐oxo‐4‐phthalimido‐1‐butylacetate in liquid NH3. The imidazole intermediates were converted into histamine analogues by simple
一种新型的 H1 激动剂是由必需的组胺结构与部分 H2 拮抗剂组合而成的。2,4-二取代咪唑衍生物是由亚胺酸甲酯与1,3-二羟基丙酮、1,4-二羟基丁酮或2-氧代-4-邻苯二甲酰亚胺-1-乙酸丁酯在液态NH3中反应合成的。咪唑中间体通过简单的脱保护、Gabriel 合成然后脱保护或通过腈进行侧链延伸和最终氢化转化为组胺类似物。筛选新化合物对分离的豚鼠回肠的 H1 活性和对分离的豚鼠右心房的 H2 拮抗活性。这些物质是相对较弱的 H1 激动剂和中度 H2 阻滞剂。